Taking omega-3 supplementation prenatally is linked to lower blood pressure in offspring with overweight or obesity, US researchers say.

The findings add to growing evidence that taking docosahexaenoic acid (DHA) during pregnancy has benefits for children.

Last year a Cochrane review found high-grade evidence for a 42% decrease in early preterm birth and an 11% reduction in preterm birth overall.

The new study followed the outcomes in the children of 171 pregnant women who received either 600mg/day of DHA in three divided doses, or placebo, from before 20 weeks’ gestation until birth.